US Patent 11338782 Brake system and method for controlling the same

A brake system includes a piston configured to generate hydraulic pressure of brake fluid stored in a brake system, and an electronic control unit (ECU) configured to calculate hydraulic pressure to be generated in response to an amount of movement of the piston. The ECU estimates a current temperature of the brake fluid, calculates a maximum estimated hydraulic pressure of the piston based on the estimated current temperature, and determines a maximum hydraulic-pressure reference value for backward movement control of the piston based on the maximum estimated hydraulic pressure.